Coffee percolator



A ril 22, 1941. A. H. HAGEN COFFEE P ERCOLATOR F iled May 11, 1940 Patented Apr. 22, 1941 UNITED STATE s PAT NT OFFICE 2 Claims.

This invention relates to improvements in coftity of ground coffce bean required for making a beverage of proper strength with any given amount of water can very easily be determined or measured out.

Another object of the invention is to provide a coffee percolator in which the buoyant efl'ect oi the water placed in the percolator is utilized in determining the quantity of ground coffee bean that should be used for the amount of water in the percolator.

More specifically, the invention contemplates a cofiee percolator wherein the ground coffee bean is placed in a container provided with a depending stem which is'normally adapted to seat or rest on the bottom oi. the coffee percolator, but the weight of this container and its stem is such that the stem will be buoyed up or raised from vide a coffee. percolator with which the quanthe bottom of the percolator by the water placed in the percolator. However, the weight 01 the container and stem is such that, when an amount of coilee bean necessary for making a beverage of lator with a quantity of water therein and the actual effect of the water on the container and its Fig. 3 is a sectional view on the line 33 of Fig. 2.

The body ID, the cover ii and the pouring spout l2 of the percolator may be ot'any desired design, as the invention has to do more particularly with the construction of the container for' theground cofi'ee bean and the stem portion on which said container is carried.

In the present invention, the stem I3 is of tubular formation and of double-walled construction, as indicated at It, to form a longitudinally extending air space or chamber l5 and the base pontion ii of the stern also forms an air chamber II- into which the elongated air chamber Ii merges. This base portion I6 is enlarged, preferably substantially covering the bottom 18 o! the percolator and, as illustrated in Fig. 1, this base portion normally rests on the bottom of the percolator. Adjacent its upper end, the stem i3 carries the container I! for the ground cofiee the proper strength with the water in the percoin the container.

Another-object or the invention is to provide means in the percolator for limiting the upward movement orthe container and its stem by the buoyant effect of the water so that the container.

will not interfere with the closing of the later top.

With these and other objects in view, the invention consists in certain details of construction and combinations and arrangements oi parts, all as will hereinafter be more fully described and the novel features thereof particularly pointed outin the appended claims.

In the accompanying drawings- Figure 1' is a vertical sectional view of a percolator embodying the present invention, with the container and its depending stem resting in their normal position with the latter seated on the bottom of the percolator; and

Fig. 2 is 'a similar view, but showing the percobean, said container being formed with a multipllcity of perforations 20 so that water rising through the tubular stem 13 can seep through the ground coflee bean in the container and return through the perforations into the percolator proper, all as is well understood in the domestic making of cofl'ee.

The buoyancy imparted to the stem l3 and its base I8 by the air chambers l5, i1, is such that, when water is placed in the percolator, the stem, together with the container is, which is fixed to the stem, will rise, as shown in Fig. 2. However, this buoyancy of the assembled stem and con-- tainer is such that, when an amount of ground coflee bean, necessary for making a beverage of the desired strength from whatever quantity of waterhas been placed in the percolator, is deposited in the container, the latter will sink or be lowered in the water until its base portion is seated on the percolator bottom. Thus, it, say three ordinary cups of water have been placed in the percolator, the container and stem wil1 rise from the bottom or the percolator but,v upon placing in vthe container an amount of ground colator. A r Of course, the greater the amount of water that is placed in the percolator, the higher the container will tend to rise and, in order that this upward movement of the container will not interfere with the closing of the lid or cover of the percolator, means are provided for limiting such upward movement. For instance, a lug or projection 2| may be provided at a suitable point near the top of the inner wall of the percolator. This lug 2| does not extend into the interior of the percolator agdistance' such as will interfere with placement of the container and its depend-,

ing stem in the percolator. However, the length 1 of the-lug or projection is such that, after the container is positioned ,in the percolator, it will overhang, so to speak, the rim of the container whereby the upward movement of the container by the buoyant effect of the water is limited to a an amount of water which will produce the de- 30' sired quantity of beverage and then pour or otherwise deposit in 'the container the ground coffee bean until the container, which will then be floating in the percolator, is caused to assume I 2,239,001 amount of water that has been placed in the perits normal position with its base seated on the bottom of the percolator. When the container assumes this position, the user will know that there has been placed in the container an amount of ground coffee bean that will produce a bev-- erage oi the desired strength from the water that v, has previously been placed in the percolator.

What I claim is: I

1. In a coffee percolator, a perforated container for ground coffee, anextension depending from said container adapted to normally rest on the percolator bottom, the buoyancy of the container 20 point slightly below the upper edge of the percolator. Thus, regardless of the amount of water that is placed in the percolator, the cover or lid and extension being such that they will-be raised off the bottom of the percolator by water deposited in the percolator but returned to their normal .lowered position by the placement in the container of an amount of ground coffee required for making a beverage of the desired strength from the volume of water in the percolator, and means on the wall of the percolator for limiting the upward movement of the container caused by the I buoyant eifect of the water; g

2. In a cofiee percolator, a perforated container for ground coffee, an extension depending from said container, and a float on said extension, the

vbuoyancy of the container, extension and :float being such that they will be raised from the bottom of the percolator by water placed in the percolator .in the absence of cofiee in said container but depressed to the bottom ofthe percolator by the additional weight of a quantity of cofiee required for the amount of water in the percolator.

' ARTHUR H. HAGEN. 

